Microwave stops heating shortly after start; display shows F02 and the fan may continue running.

Safety first: Unplug the appliance. High‑voltage components inside can be lethal. Do not touch the high‑voltage capacitor or wiring unless you are trained and have discharged the capacitor correctly.

• Step 1 – Check ventilation: Ensure all external vents are clear of dust, grease, and obstructions. Indesit microwaves require several centimetres of clearance around the sides and rear for proper cooling.
• Step 2 – Inspect cooling fan operation: Start a short heating cycle with a cup of water and listen for the cooling fan. If the fan does not run, the magnetron will overheat and trigger F02. A failed fan motor or blocked fan can cause this.
• Step 3 – Access thermostats (advanced): With power disconnected and cabinet removed, locate the thermal cut‑outs on the magnetron body and on the cavity/top of the oven. Check for continuity with a multimeter. An open thermostat that does not reset must be replaced.
• Step 4 – Clean internal air channels: Carefully remove dust and grease from the fan blades and air ducts using a soft brush and vacuum (with the unit unplugged).
• Step 5 – Replace faulty components: Replace any open thermal cut‑out or non‑running cooling fan with genuine Indesit parts. If the magnetron shows signs of overheating damage (discolouration, burning smell), it may also need replacement.

Warning: Magnetron and high‑voltage repairs should only be carried out by qualified technicians.